Drilling out a hole in the skull base requires great precision and often takes many hours, a demanding procedure for a surgeon. Researchers from Eindhoven University of Technology (TU/e) have developed a surgical robot to take over this task. With sub-millimeter precision, the robot can automatically and safely mill a cavity of the desired shape and dimensions. Jordan Bos received his PhD on 16 April for the robot he designed and built. The robot is expected to perform its first surgery within five years.